Witness to terror: Nigeria's missing schoolgirls

Nima Elbagir (right) and the CNN crew in Chibok, Nigeria after more than 200 schoolgirls were taken from the town.

STORY HIGHLIGHTS

On April 14, Boko Haram kidnapped more than 200 girls from a school in Chibok, Nigeria

A CNN team made the dangerous journey to the village in Boko Haram's heartland

CNN correspondent Nima Elbagir spoke to a girl who fled, mothers of abductees and other villagers

She accompanied villagers armed with machetes on their night-time patrol of the area

(CNN) -- The militants pulled into the northeastern Nigerian village of Chibok under cover of darkness, their target a girls' boarding school filled with students ahead of final year exams.

Armed and wearing military uniforms, they told the girls they were there to protect them.

The girls started to assemble in the yard as ordered to, not realizing the men were from Boko Haram -- the group whose name roughly translates as "Western education is sin" -- until it was too late. More than 200 were loaded onto trucks and spirited away: the group's leader later announced that he would sell them.

Map: Nima Elbagir's route to Chibok

Map: Nima Elbagir's route to Chibok

Since the mass abduction on April 14, the world's attention has been focused on Chibok, but CNN was the first global news organization to send a team to the scene of the atrocity.

The journey from the relative safety of Nigeria's capital, Abuja, to the remote countryside stalked by Boko Haram can take eight to 10 hours, but logistics and security concerns meant that it took CNN international correspondent Nima Elbagir's team four days to complete the trek.

For most of the route, the road was tarmacked and the team constantly stopped at checkpoints manned by the military, police or vigilantes looking out for militants. But for the final 45 minutes the tarmac and checkpoints disappeared and the team swerved through the bleak, potholed landscape at full speed with flak jackets beside them.

Around the world, the #BringBackOurGirls campaign continues and foreign governments including the United States, Britain, France, Israel and China have offered help to Nigeria's government find the girls.

But the schoolgirls are still missing, their relatives still praying for their return and the residents of Chibok still haunted by the attack that left them cowering in the bush as Boko Haram plundered their village.

Full coverage of CNN international correspondent Nima Elbagir's Chibok journey will screen on CNN International on Saturday 17 May at 2100 CET, Sunday 18 May at 0030 CET, 0400 CET and 1200 CET and Monday 19 May at 0730 CET.